The Midwest Industries Quick Detach (QD) Optic Mount for Trijicon RMR's is the smoothest functioning QD lever RMR adapter on the market today. The Superior clamping surface of the Midwest QD RMR mount will not damage or coin the surface of your rail. The mount is fully adjustable and does not require any tools in order to install. The other great benefit of the Midwest QD RMR mount is that it will also those out of spec rails as well.